Air-heating radiator



Patented Aug. 23, |898.

J. M. SPBECHER. AIR HEATING RADIATOR.

(Application led Apr. 1S, 1898.)

(No Model.)

:Ullllllll IIIII IIINII w/TNESSES .l a l NrTED STATES PATENT OFFICE.

JOHN MILTON SPRECHER, O F EPHRATA, PENNSYLVANIA.

\A| RH yEATING RADIATOR.

SPECIFICATION forming part of Letters Patent No. 609,595, dated August 23, 1898.

Application filed April 18, 1898. Serial No. 678,047. (No model.)

To a/ZZ whom t mrtg/concern.-

Be it known that I, JOHN MILTON SPEECH- ER, a citizen of the UnitedStates and a resident of Ephrata, in thecounty of Lancaster and State of Pennsylvania, have invented certain new and useful Improvements in Air- Heating Radiators, of which the following is a specication.

My invention relates to radiators for heating the air of a room by drawingitcontinuously through the drum and in` contact with the Walls thereof, which'are kept hot by the waste heat passing oft with the products of combustion from a fire. l

My invention has for its objects to devise a heating-radiator which will be "more effective for the purpose for which it is intended and which shall be of cheap and durable construction and made up of parts easily assembled for use or taken apart for cleaning.

The principle employed for increasing the efficiency of my improved radiator is to so arrange thesmoke and air chambers that the former shall surround the latter, whereby the heat may be concentrated inward inI the circulating air to be heated and radiated outward to the outer atmosphere ofthe room, the products of combustion being giventhe greatest opportunity to throw off their other-l Wise-wasted heat from the enlarged outer chamber, while the column of circulating air is confined to a comparatively smaller section and is thus heated more fully and circulated more rapidly.

While not claiming novelty in this princi ple per se, my invention consists in the construction of the upper and lower heads of the drum, whereby the products of combustion are received and discharged through axial openings arranged for convenient attachment of the smoke-pipe, and the air to be heated enters and discharges through a surrounding concentric series of ports, while the direction of the heating-gases and heated air, respectively, into the outer and inner concentric chambers is effected by dividing the heads radially into compartments which are made to communicate alternately with the outer and inner chambers and to connect them with ports leading, respectively, to the axially-connected smoke-pipes and the surrounding atmosphere.

A further feature of my invention resides in the choking or retarding eifect produced by the peculiar formation 0f the heads, whereby the heating-gases and heated air are retained within the 'd rum till the former gives up its heat.

A further feature consists in constructing the upper head so that the ports in the radial sections of the head may be opened or closed at will to regulate the heating effect of the drum.

My invention will be fully understood upon reference to the accompanying drawings, in which- Figures l and 2 arerespectively an elevation and a vertical axial section of a heatingradiator embodying the main features of my invention. Figs. 3 and 4 are horizontal sections taken through Figs. 1 and 2, the one in a plane between the heads and the other in a plane through one of the heads. Figs. 5 and 6 are sectional detail views showing two constructions ofthe upper head. By the latter the capacityof the drum may be regulated at will by graduating the air-outlet.

The drum comprises an `outer cylindrical body 1, preferably fluted for the purpose of increasing its rigidity and heating-surface, an inner concentric cylinder 2, also preferably uted, a lower head 3, preferably provided with legs or other supports 4, and an upper head 5. The heads are provided with outer and inner fianges 6 and 7, which it within the respective cylinders to hold the parts in proper relative positions. The lower head is formed with two diaphagms 3 and 3", forming, together with the outer wall of said head, a space which is lutilized for iiues in conducting the products of 'combustion or heatinggases and the air to be heated to the outer and inner chambers formed by the concentric cylinders l and 2. The upper head is made up of the lower diaphragm 5b, which, together with the outer wall, form a flue-space in the upper head. These due-spaces in the respective heads are divided by radial partitions S into smoke-dues 9 and air-fiues l0, of which the smoke-dues in the lower head receive the products of combustion or heating -gases through inner segmental openings 11 in the lower diaphragm 3, said openings ll communicating with a centrally-conn ected smoke IOO ' charge said smoke or heated gases through outer ports 11a in the upper diaphragm 3b into the outer or surrounding chamber 1. Alter- Vnatin g with the smoke-dues 9 are the air-fines 10, which receive cold air from the iioor of the room through the outer ports 12 in the lower diaphragm 3f and discharge the same into the central chamber 2 through the inner ports 12a. At the top the heating-gases pass through the outer ports 11X in the lower diaphragm 5b of the upper head and into the upper smoke lues 9, whence they escape through the inner segmental ports l1X to a centrally-connected smoke-pipe which is attached through the medium of the upper collar 13.' The air to be heated arises from the central chamber 2 through the inner ports 12 of the lower diaphragm 5b of the upper head into the upper air-fines 12X, which alternate with the upper smoke-fines precisely as described with reference to the lower head, and the heated air escapes from the said air-nues 12 through the outer ports 12x into the room to beheated.

From the foregoing description it will be seen that I have provided a cheap, effective, and durable structure which will take in and discharge the heatinggases through centrally-attached pipes and the air to be heated through ports near the outer edges of the drum, while the heating-gases pass upward through an outer or surrounding annular chamber, so as to heat the outer wall of the drum for radiation and the inner wall of the drum for transmitting heat to the air, while said air passes up through the central chamber, where the inwardly-radiated heatinggases will be concentrated in it, and it will be much more effectively heated, these resultsv being accomplished by simply providing upper and lower heads formed with flue-spaces which are divided by radial partitions into lues, some of which are connected by port-s in the inner diaphragms 3b and 5b with the smoke-chamber and other ports in the outer diaphragm 3a and 5a with attached smokepipes, while the other nues formed by the radial partitions are connected through ports in the inner diaphragms with the air-chamber and through ports in the outer diaphragms with the atmosphere of the room to be heated. To produce evenness of results, I prefer to alternate the iiues, as has been described, although such is not of the essence of my invention.

A further object arising from the plan of construction of the heads is that such construction ofters a basis for the arrangement of dampers to control the size or" the ports of the air-chamber or at least to regulate the proportion of the air passing through the radiator which`is delivered into the room, part being allowed to escape into the smoke-pipe or all being allowed to so escape, if desired for purposes of ventilation. This will be understood upon reference to Fig. 6, wherein 14:

represents a rotary cap surmounting the upper diaphragm 5 of the upper head carrying the smoke-pipe flange 13 and provided with air-ports 12Y, corresponding to the air-ports 12X in the upper diaphragm, with which they are connected by inwardly-projecting flanges 15, which bear upon the upper diaphragm 5 in such a manner as to space the rotary cap from the diaphragm 5, so as to leave the smoke-chamber 16 under said cap, but at the same time to guard against the escape of smoke through the air-ports 12V. Vith this construction it becomes an easy matter to rotate the cap 14, so as to bring more or less of the air-ports 125 in the cap into coincidence with the air-ports 12x of the upper diaphragm,

the room. Any movement of the cap 14: from this position, however, will result in discharging but a portion of the hot air into the room, while the remainder passes into the smokechamber 16 and off through the chimney or other place of outlet with which the drum may be connected. If the cap 14 is turned sufficiently to cause the flanges 15 to rest upon a solid portion of the diaphragm 5a, then all the hot air from the inner chamber 2 will pass into the smoke-chamber 16 and out with the heating-gases, and the result will be a ventilation of the room without discharging heated air into the room. Y

I find that in the use of my radiator or drum the gases take a spiral movement in passing through the radiator, thereby increasing its heating capacity. I

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. A heating-radiator comprising inner and outer concentric chambers and upper and lower heads; each head made up of a side wall and inner and outer diaphragms and divided by radial partitions into iiues; the inner diaphragms of each head being formed with ports located to connect some of the lues with the inner concentric chamber, and the other iiues to the outer chamber, and the outer diaphragms provided with ports located for separately directing gases and air to and vided with ports which connect the iiues of- IIO IZO

the inner chamber with the outer atmosphere,

and the Iiues of 'the outer chamber With the respective smoke-pipe connections 5 substantially as explained.

3. A head for heating-drums, comprising two diaphragms, a side Wall and radially-arranged partitions dividing the space Within the head into a number of segmental lines; said diaphragms being provided With ports communicating with the respective fines and located alternately at inner and outer ends of the fines and disposed so that each luehas an inlet and outlet at opposite ends and opposite sides; substantially as and for the purposes set forth.

4. In combination with a heating-drum head having radially-disposed iiues arranged for communication with separate chambers of the drum and having separate dischargeopenings at different radial distances from the center of the drum; a rotary cap surmounting said head and formed With a central pipe attachment communicating With the inner series of openings, and a series of outer openings corresponding to the outer series of openings of the head and brought by rotation of the cap into and out of coincidence with the openings of the head; substantially as and for the purposes set forth.

5. In combination with a heating-drum head having radially-disposed lines arranged for communication with separate chambers of the drum and having separate dischargeopenings at different radial distances from the center of the drum; a rotary cap surmounting said head and formed with a central pipe attachment communicating With the inner series of openings, and a ,series of outer openings corresponding to the outer series of openings of the head and brought by rotation of the cap into and out of coincidence With the openings of the head; said cap-openings having inwardly-projecting iianges Which space the cap apart from the head and form a smoke-chamber; substantially as and for the purposes set forth.

JOHN MILTON SPRECHER.

Witnesses:

WM. K. FrsHBuRN, JAG. KONIGMACHER. 

